Is this a Radeon RX 6800XT (Navi 21) engineering board ?
AMD Navi 21 will have 80 CUs combined with RDNA 2 and hardware ray tracing
AMD Radeon RX 6950XT features Navi 21 KXTX GPU, supports Hynix and Samsung 18Gbps memory - VideoCardz.com
RedGamingTech
PowerColor uses special bin Navi 21 XTXH in latest graphics card - Graphics - News - HEXUS.net
Nvidia Ampere vs. AMD RDNA 2: Battle of the Architectures | TechSpot
Navi 12, 14, 21, and Lite variants of AMD's latest GPU range revealed in Linux driver code; RX 5800 could take on the GeForce RTX 2080 - NotebookCheck.net News
Mysterious Radeon RX 6800 'Navi 21' Card with 8GB of GDDR6 Spotted | Tom's Hardware
Mysterious AMD Radeon RX GPU Based on Navi 21 & 8 GB GDDR6 Memory Spotted
AMD Navi 21 "Big Navi" GPU stack leaks, budget gamers may have to contend with a Navi 10 Refresh rather than pinning hopes on Navi 23 - NotebookCheck.net News
AMD Radeon RX 6800 Review - Features - The RDNA 2 Compute Unit
Report: AMD lays out measures for retailers to stop Big Navi scalpers | TechSpot
Rumor: AMD's Navi 21 GPU has 255 watts TGP and Boost up-to 2.4 GHz